Implement support for CHROMIUM_path_rendering pseudo extension

src/gpu/gl/GrGLPathRendering.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/GrGLPathRendering.h"
 #include "gl/GrGLNameAllocator.h"
 #include "gl/GrGLUtil.h"
@@ skipping 43 matching lines @@
             /* fallthrough */;
         case kIncClamp_StencilOp:
             return GR_GL_COUNT_UP;
         case kInvert_StencilOp:
             return GR_GL_INVERT;
     }
 }
 
 GrGLPathRendering::GrGLPathRendering(GrGLGpu* gpu)
     : GrPathRendering(gpu) {
+    const GrGLInterface* glInterface = gpu->glInterface();
+    fCaps.bindFragmentInputSupport =
+        NULL != glInterface->fFunctions.fBindFragmentInputLocation;
 }
 
 GrGLPathRendering::~GrGLPathRendering() {
 }
 
 void GrGLPathRendering::abandonGpuResources() {
     fPathNameAllocator.reset(NULL);
 }
 
 void GrGLPathRendering::resetContext() {
@@ skipping 212 matching lines @@
         GL_CALL(PathStencilFunc(func, stencilSettings.funcRef(GrStencilSettings::kFront_Face),
                                 stencilSettings.funcMask(GrStencilSettings::kFront_Face)));
 
         fHWPathStencilSettings = stencilSettings;
     }
 }
 
 inline GrGLGpu* GrGLPathRendering::gpu() {
     return static_cast<GrGLGpu*>(fGpu);
 }